Vacuum cleaner



FIG. 1 is a top side perspective view of a vacuum cleaner, showing my new design;

FIG. 2 is a top rear perspective view thereof;

FIG. 3 is a bottom perspective view thereof; and

FIG. 4 is a top side perspective view thereof showing the side opposite that shown in FIG. 2.

The conventional electric cord has been shown fragmentarily in FIGS. 1 and 2 for ease of illustration. 

The ornamental design for a vacuum cleaner, as shown and described. 